Move cpath to os

This commit is contained in:
2024-10-06 20:04:38 +01:00
parent 17f0f0eaf3
commit 7d8df816a5
2 changed files with 0 additions and 0 deletions

View File

@@ -1,92 +0,0 @@
#include "cpath.h"
#include "aliases.h"
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
void join_root_and_leaf(const char *root, const char *leaf, char *dst);
void join_path(char *dst, u64 count, ...) {
va_list args;
va_start(args, count);
for (u64 i = 0; i < count; ++i) {
join_root_and_leaf(dst, va_arg(args, const char *), dst);
}
va_end(args);
}
void dirup(char *dst, u64 levels, const char *path) {
if (levels < 1) {
return;
}
u64 copy_count = 0;
u64 sep_count = 0;
u64 full_length;
u64 length;
length = full_length = strlen(path);
if (length > 1 && path[length - 1] == PATH_SEP) {
--length;
}
for (i64 i = length - 1; i >= 0; --i) {
if (path[i] == PATH_SEP) {
++sep_count;
copy_count = i + 1;
if (sep_count == levels) {
break;
}
}
}
char tmp[256];
sprintf(tmp, "%c", PATH_SEP);
// NOTE (Abdelrahman): Conditions stored in variables to silence MSVC warning C5045
bool insufficient_levels = sep_count < levels;
bool path_to_copy_is_separator = strncmp(path, tmp, copy_count) != 0;
if (insufficient_levels && path_to_copy_is_separator) {
copy_count = 0;
}
if (dst == path) {
memset(&dst[copy_count], 0, full_length - copy_count);
} else {
u64 dst_length = strlen(dst);
memset(dst, 0, dst_length);
strncpy(dst, path, copy_count);
}
u64 final_length = strlen(dst);
if (final_length > 1) {
dst[final_length - 1] = '\0';
} else if (final_length == 0) {
dst[0] = '.';
}
}
void join_root_and_leaf(const char *root, const char *leaf, char *dst) {
u64 root_length = strlen(root);
u64 leaf_length = strlen(leaf);
memcpy(dst, root, root_length);
if (leaf_length == 0) {
return;
}
u64 copy_start = root_length;
if (root_length > 0 && root[root_length - 1] != PATH_SEP && leaf[0] != PATH_SEP) {
dst[root_length] = PATH_SEP;
++copy_start;
}
memcpy(&(dst[copy_start]), leaf, leaf_length);
}

View File

@@ -1,32 +0,0 @@
#ifndef CPATH_H
#define CPATH_H
#include "aliases.h"
#include "platform.h"
#ifdef __cplusplus
BEGIN_C_LINKAGE
#endif // __cplusplus
#ifdef WAPP_PLATFORM_POSIX
#define PATH_SEP '/'
#elif defined(WAPP_PLATFORM_WINDOWS)
#define PATH_SEP '\\'
#else
#error "Unrecognised platform"
#endif
#define NUMPARTS(...) (sizeof((const char *[]){"", __VA_ARGS__}) / sizeof(const char *) - 1)
#define wapp_cpath_join_path(DST, ...) join_path(DST, NUMPARTS(__VA_ARGS__), __VA_ARGS__)
#define wapp_cpath_dirname(DST, PATH) dirup(DST, 1, PATH)
#define wapp_cpath_dirup(DST, COUNT, PATH) dirup(DST, COUNT, PATH)
void join_path(char *dst, u64 count, ...);
void dirup(char *dst, u64 levels, const char *path);
#ifdef __cplusplus
END_C_LINKAGE
#endif // __cplusplus
#endif // !CPATH_H